Girls, Are girls shy or uninterested?

A lot of times when I am talking to a girl or I randomly make eye contact they immediately look down , they don't hold the eye contact. I don't know if they are shy because I get compliments frequently from guys that I am handsome and I am in good shape. Also when I am in group conversations in class she is cool with everyone else , but doesn't make eye contact with me.
Girls, Are girls shy or uninterested?
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